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公开(公告)号：US20200211458A1
公开(公告)日：2020-07-02
申请号：US16502755
申请日：2019-07-03
Inventor： Min HE , Song MENG , Fei YANG , Chun CAO , Xiaolong WEI
IPC: G09G3/3233 , G09G3/3266 , G09G3/3275
Abstract: The present disclosure relates to a pixel circuit, a compensation method and a display device. The pixel circuit includes a first switching circuit for supplying a data voltage to a first node in response to a first scan signal being valid, a second switching circuit for conductively connecting a sensing signal line with a second node in response to a second scan signal being valid, a reset circuit for supplying a reset voltage to the sensing signal line in response to a reset control signal being valid, a light-emitting element, and a driving transistor for enabling, when the light-emitting element emits light, the sensing signal line to be charged in response to the second scan signal being valid and the reset control signal being invalid, the voltage of the sensing signal line is sensed after it was charged so as to compensate the data voltage.
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公开(公告)号：US20200068704A1
公开(公告)日：2020-02-27
申请号：US16456332
申请日：2019-06-28
Inventor： Enming XIE , Xiaolong WEI , Chun CAO , Wenchao BAO
Abstract: The present disclosure provides a printed circuit board including a plurality of conductive layers separated by insulating medium and a plurality of connection structures. Each connection structure penetrates each of the conductive layers. The plurality of conductive layers comprises a first conductive layer in which first signal lines are located and a second conductive layer in which second signal lines are located, and the first and second signal lines are connected via the connection structures. Anti-pads surrounding the connection structures are provided on others of the plurality of conductive layers except the first and the second conductive layers. For a same connection structure, the anti-pads surrounding the connection structure include adjacent anti-pads and nonadjacent anti-pads. Size of the adjacent anti-pads in any direction parallel to the conductive layers is smaller than that of the nonadjacent anti-pads. The present disclosure also provides a display apparatus.
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Patent Agency Ranking
公开(公告)号：US20250095585A1
公开(公告)日：2025-03-20
申请号：US18294167
申请日：2022-09-26
Inventor： Yao ZHANG , Wenchao BAO , Xiaolong WEI , Miao LIU , Cheng XU , Qiang FEI
IPC: G09G3/3258 , G09G3/20
Abstract: A driving method and an apparatus, and a storage medium are provided. The driving method is applied to a pixel drive circuit, the pixel drive circuit including a drive transistor, the drive transistor including a second electrode and a third electrode; and the method includes: applying a data voltage acquired based on a reference gamma curve to the third electrode of the drive transistor, and applying a preset voltage to the second electrode of the drive transistor; a lowest voltage of the reference gamma curve is greater than a lowest voltage of a standard gamma curve, and the preset voltage is less than or equal to the lowest voltage of the reference gamma curve.
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公开(公告)号：US20240395205A1
公开(公告)日：2024-11-28
申请号：US18693528
申请日：2023-08-02
Inventor： Jian MAO , Song MENG , Xiaolong WEI , Miao LIU , Cheng XU
IPC: G09G3/3233 , G09G3/00
Abstract: The display panel includes a plurality of pixel units and a sense compensation circuit; and a pixel unit includes a plurality of sub-pixels; a sub-pixel includes a pixel drive circuit and an element to be driven; the display panel further includes: a detection unit and a compensator; the sense compensation circuit is configured to sense the electrical characteristics of said element at a non-active time; the detection unit is configured to detect whether dynamic and static attributes of a picture displayed in a previous preset time period are changed, and send a first notification to the compensator when the dynamic and static attributes are changed; the compensator is configured to receive the first notification and not, according to the sense result of the sense compensation circuit in the previous preset time period, compensate for a picture displayed in a next preset time period.
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公开(公告)号：US20220122539A1
公开(公告)日：2022-04-21
申请号：US17417501
申请日：2020-12-09
Inventor： Wenchao BAO , Xiaolong WEI
IPC: G09G3/3258 , G09G3/00 , G09G3/3266
Abstract: The present disclosure provides method and device for processing compensation data to be applied to a pixel circuit, and a display panel. The method includes: receiving M compensation data; determining a first threshold range according to (i−N)-th to (i−1)-th standard data, wherein midpoint and length of the first threshold range both depend on the (i−N)-th to (i−1)-th standard data; judging whether an i-th compensation data is in the first threshold range or not; in response to the i-th compensation data being in the first threshold range, determining the i-th compensation data as qualified and using it as an i-th standard data; and in response to the i-th compensation data not being in the first threshold range, determining the i-th compensation data as unqualified, replacing it with an average value of the (i−N)-th to (i−1)-th standard data, and using the replaced i-th compensation data as the i-th standard data.
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公开(公告)号：US20210225287A1
公开(公告)日：2021-07-22
申请号：US16765846
申请日：2019-09-29
Inventor： Song MENG , Fei YANG , Chun CAO , Xiaolong WEI
IPC: G09G3/3258 , G09G3/3275
Abstract: A compensation method for a display panel and a display device are provided. The display panel includes a plurality of sub-pixels, and at least one of the plurality of sub-pixels includes a sensing capacitor. The method includes: obtaining a first voltage value and a second voltage value of the sensing capacitor, obtaining a temperature change amount of a sub-pixel corresponding to the sensing capacitor according to the first voltage value and the second voltage value of the sensing capacitor, determining a value of a compensation parameter of the sub-pixel according to the temperature change amount of the sub-pixel and a preset correspondence between the temperature change amount of the sub-pixel and the compensation parameter; and performing a compensation on a driving voltage of the sub-pixel according to the value of the compensation parameter as determined.
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公开(公告)号：US20210074224A1
公开(公告)日：2021-03-11
申请号：US16470662
申请日：2019-01-17
Inventor： Xiaolong WEI , Wenchao BAO , Min HE
IPC: G09G3/3291
Abstract: The embodiment of the present application provides a data processing method, wherein the data processing method is applied to a display panel comprising pixels arranged in an M×N array, the method comprising: obtaining voltage data corresponding to pixels of n adjacent columns in the ith row; determining, based on stored voltage data corresponding to pixels of n adjacent columns in (m−1) rows previous to the ith row, whether voltage data corresponding to a pixel in the ith row and jth column is abnormal; performing a filtering process on the voltage data corresponding to the pixel in the ith row and jth column if the voltage data corresponding to the pixel in the ith row and jth column is abnormal, such that a difference between a threshold voltage after the filtering process and an actual threshold voltage is less than or equal to a first threshold difference.
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